CN203035425U - Nose-type starter and driving end cover thereof - Google Patents
Nose-type starter and driving end cover thereof Download PDFInfo
- Publication number
- CN203035425U CN203035425U CN 201220708772 CN201220708772U CN203035425U CN 203035425 U CN203035425 U CN 203035425U CN 201220708772 CN201220708772 CN 201220708772 CN 201220708772 U CN201220708772 U CN 201220708772U CN 203035425 U CN203035425 U CN 203035425U
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- Prior art keywords
- end cap
- joint
- driving end
- stiffening rib
- nose
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Abstract
The utility model discloses a nose-type starter and a driving end cover thereof and relates to the field of starters. The driving end cover of the nose-type starter comprises a front nose portion, a bearing portion arranged at the front end of the front nose portion and a notch portion arranged on a lateral face of the front nose portion, wherein a driving shaft is arranged on the bearing portion in a penetrated mode; and the notch portion comprises a meshing space and a connecting portion, the meshing space is used for meshing a driving gear and an engine, the connecting portion is connected with the front nose portion, and a main strengthening rib is arranged in an inner wall of the connecting portion. The nose-type starter comprises the driving end cover. By means of the nose-type starter and the driving end cover of the nose-type starter, stress of the notch portion can be scattered in the structure, strength of the driving end cover is increased, risks of breaking of the driving end cover are greatly reduced, and simultaneously casting defects caused by increase of materials are avoided.
Description
Technical field
The utility model relates to the starter motor that a kind of automobile is used, and what be specifically related to that a kind of automobile uses has nose formula starter motor and drive end cap.
Background technique
The structure of nose formula starter motor is arranged as shown in Figure 1, mainly comprise: drive end cap 10, live axle 2, one-way element assembly 3, actuation gear 4, shift fork 5, stator assembly 6, brush assembly 7, bonnet 8 and magnetic switch 9.Also comprise an important axial dimension feature---actuation gear position of rest L, namely starter motor is not when working, and the end face of the actuation gear 4 on the one-way element assembly 3 is to the length that drives end cap 10 end face of flange.
The structure of the existing driving end cap 20 ' that nose formula starter motor arranged mainly comprises: bearing portion 11 ', front nose 12 ', gap portion 13 ' as shown in Figure 2.11 ' the effect of bearing portion is the front end position of supporting driving shaft 2.The effect of front nose 12 ' is to provide enough working spaces for one-way element assembly 3.Gap portion 13 ' is that the engagement space of window and the joint that is connected with front nose 12 ' are left in the side that is included in front nose 12 ', and purpose is after reserving one-way element assembly 3 and getting, and the actuation gear 4 on it can be in the engagement of engagement space with engine flywheel.The window of gap portion 13 ' has reduced the particularly intensity at the whole edge of joint of gap portion 13 ' of front nose 12 '.
Consider manufacturing efficiency and cost, for lower-powered starter motor, above-mentioned driving end cap 10 ' is generally formed by aluminium material die casting, the characteristics determined of extrusion process gap portion 13 ' formed jointly by outer mold and inner mold, be the position, boundary of outer mold in window is in, and must can produce the stress concentration phenomenon herein.Simultaneously the edge of the joint of gap portion 13 ' all is that the wedge angle transition also can produce stress and concentrates.And wedge angle can form burr after die casting, thereby may cause damage to reduce intensity to gap portion 13 ' in the process of processing burr.
There is supporting effect in the bearing portion 12 ' that drives end cap 10 ' from Fig. 1, Fig. 2 as can be seen to live axle 2.When starter motor was worked, the gear of one-way element assembly 3 and engine flywheel engagement can be transmitted very big load and be given live axle 2 when dragging, and this load meeting is delivered in the gap portion 13 ' that drives end cap 10 ' by live axle 2.When actuation gear position of rest L was bigger, the phenomenon of gap portion 13 ' side margin position fracture can take place because leverage is exaggerated in this load meeting under such load effect.
There are following three kinds for the present general solution of above-mentioned phenomenon of rupture:
1, the starter motor that damages is carried out the new driving end cap of maintain and replace, but increased after-sale service cost.
2, use high-intensity ductile cast iron material to replace aluminium, opening position intensity is greatly improved.But ductile cast iron material can only adopt the sand mo(u)ld cast to form, and manufacturing efficiency is low.And the later stage amount of machining causes subsequent machining cost to increase greatly.
3, increase the material thickness at gap portion place, but increased casting defect herein equally, as: sand holes, pore etc., it is not high that intensity increases degree.
Therefore, need a kind of intensity height of exploitation and the low driving end cap of cost.
The model utility content
The purpose of this utility model has provided the driving end cap that nose formula starter motor is arranged that a kind of automobile is used, the stress that can disperse the gap position on the structure, increase the intensity that drives end cap, greatly reduce the risk that drives the end cap fracture and avoided simultaneously because the casting defect that the material increase brings.
The purpose of this utility model is that a kind of nose formula starter motor that has also is provided, and has the intensity height, not the driving end cap of easy-rupturing.
To achieve these goals, the utility model provides a kind of driving end cap, has been installed on nose formula starter motor, comprising:
Front nose;
Be arranged at the bearing portion of described front nose front end, described bearing portion wears a live axle;
Be arranged on the gap portion of described front nose side, described gap portion comprises the engagement space of meshing for an actuation gear and an engine flywheel and the joint that is connected with described front nose, and wherein, the inwall of described joint is provided with main stiffening rib.
Above-mentioned driving end cap, wherein, described driving end cap adopts the aluminium alloy compression casting manufacturing.
Above-mentioned driving end cap, wherein, the junction surface of described main stiffening rib and described inwall is curved surface.
Above-mentioned driving end cap, wherein, described joint comprises 2 first joints, 2 second joints and two transition parts, and described first joint is vertical with described live axle, described second joint is parallel with described live axle, and described transition part connects described first joint and described second joint.
Above-mentioned driving end cap, wherein, described transition part is hypotenuse, described main stiffening rib is arranged at the inwall of described transition part and parallel with described transition part.
Above-mentioned driving end cap, wherein, described transition part is the circular arc limit, described main stiffening rib is arranged at the inwall of described second joint and parallel with described second joint.
Above-mentioned driving end cap, wherein, described transition part is hypotenuse or circular arc limit, described main stiffening rib comprises the first main stiffening rib.
Above-mentioned driving end cap, wherein, the described first main stiffening rib is arranged at the inwall of described transition part and described second joint, and extends to described front nose upper shift fork position opening at the inwall of described front nose along described live axle direction.
Above-mentioned driving end cap, wherein, the described first main stiffening rib has the district of removal.
Above-mentioned driving end cap, wherein, described main stiffening rib also comprises the second main stiffening rib, the described second main stiffening rib is arranged at the inwall of described second joint and parallel with described second joint.
Above-mentioned driving end cap, wherein, many auxilliary stiffening ribs of the inner wall even distribution of described front nose, described many auxilliary stiffening ribs are extended to the joint of described front nose and described bearing portion by described shift fork position opening.
The utility model also provides a kind of nose formula starter motor that has, and comprises the driving end cap, and wherein, described driving end cap is above-mentioned driving end cap.
Beneficial functional of the present utility model is, designs stiffening rib at the gap inwall that fracture easily takes place, and the position, boundary of interior outer mold when the position is in die casting increases the intensity of structure by increasing material thickness.Machine analog computation stress value reduces by 28% as calculated.Four sides of stiffening rib all are inclined-plane or the curved surface of band angle, have reduced the possibility that stress has also avoided forming in the casting burr thereby the edge of each face intersection all forms round-corner transition.The thickness of reinforcing rib design meets the requirement that extrusion process reduces casting defect simultaneously.
Further, driving end cap of the present utility model adopts the aluminum or aluminum alloy material to make by the mode of die casting, has reduced mach cost of later stage when having guaranteed manufacturing efficiency.Relatively the high-strength material cost is lower has more the market competitiveness in price for spheroidal graphite cast iron etc.
Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to restriction of the present utility model.
Description of drawings
Fig. 1 is the sectional view of the unitary construction of starter motor of the present utility model;
Fig. 2 is the existing structural drawing that drives end cap;
Fig. 3 is that first embodiment of the present utility model drives the end cap three-dimensional structure diagram;
Fig. 4 is that first embodiment of the present utility model drives the three-dimensional plan view of end cap;
Fig. 5 is the sectional view of Fig. 4;
Fig. 6 is the sectional view that second embodiment of the present utility model drives end cap;
Fig. 7 is the sectional view that the 3rd embodiment of the present utility model drives end cap;
Fig. 8 is the sectional view that the 4th embodiment of the present utility model drives end cap;
Fig. 9 is the sectional view that driving end cap of the present utility model has auxilliary stiffening rib.
Wherein, reference character
10 ', 10,20,30,40 drive end cap
11,11 ' bearing portion
12,12 ', 32 front nose
13 gap portions
131 engagement spaces
132,232,332,432 joints
133,233,333,433 first joints
134,234,334,434 second joints
135,235,335,435 transition parts
14,24,34,44 main stiffening ribs
141,142,143,241,242,243,244,341,342,343 surfaces
15,16 auxilliary stiffening ribs
17 removal portions
2 live axles
3 one-way element assemblies
4 actuation gears
5 shift forks
6 stator assemblies
7 brush assemblies
8 bonnets
9 magnetic switch
Embodiment
Below in conjunction with the drawings and specific embodiments technical solutions of the utility model being described in detail, further understanding the purpose of this utility model, scheme and effect, but is not the restriction as the utility model claims protection domain.
With reference to Fig. 1, there is the structure of nose formula starter motor mainly to comprise: to drive end cap 10, live axle 2, one-way element assembly 3, actuation gear 4, shift fork 5, stator assembly 6, brush assembly 7, bonnet 8 and magnetic switch 9.
With reference to Fig. 3 to Fig. 5, Fig. 3 is the stereogram of an embodiment's of the present utility model driving end cap 10 that nose formula starter motor is arranged, and Fig. 4 is an embodiment's of driving end cap of the present utility model plan view, and Fig. 5 is the sectional view of Fig. 4.Driving end cap 10 of the present utility model comprises bearing portion 11, front nose 12 and gap portion 13.Bearing portion 11 is arranged at the front end of front nose 12, and is equipped with live axle 2, and gap portion 13 is arranged at the side of front nose 12.
As shown in Figure 3, the effect of bearing portion 11 is front end positions of supporting driving shaft 2; The effect of front nose 12 is to provide enough working spaces for the one-way element assembly 3 that is arranged in live axle 2.Gap portion 13 comprises for actuation gear 4 and the engagement space 131 of engine flywheel (not illustrating) engagement and the joint 132 that is connected with front nose 12.
Driving end cap of the present utility model also comprises the main stiffening rib 14 that is arranged at joint 132 inwalls.The setting of main stiffening rib 14 can reduce the stress at joint place concentrates, and strengthens the gap edge, and namely the intensity of joint 132 prevents from driving the inefficacy that the high loading fracture appears in end cap.
In below introducing, length, width and the thickness direction of stiffening rib 14 are done following regulation: " length " direction be starter driving shaft axially or with the true dip direction that axially approaches of starter driving shaft; " width " direction is that starter motor drives the circumferential of end cap or drives the true dip direction that end cap circumferentially approaches with starter motor; " thickness " direction is the radial direction that starter motor drives end cap.
First embodiment
Fig. 3 is the stereogram of first embodiment's of the present utility model driving end cap, and the joint 132 of this driving end cap 10 comprises orthogonal 2 first joints 133 with 2 second joints 134 and is connected first joint 133 and two transition parts 135 of second joint 134.In the present embodiment, as shown in Figure 5, Fig. 5 is the sectional view of the driving end cap of present embodiment, transition part 135 is hypotenuses, the main stiffening rib 14 that drives end cap 10 is arranged at the inwall of transition part 135, described inwall is driven axial wall body by the utility model drive end capping to wearing, below related inwall all identical.The angle of inclination of stiffening rib 14 is identical with the angle that transition part 135 tilts.Main stiffening rib 14 respectively arranges one in the inwall of the transition part 135 of the both sides of the joint 132 that drives end cap 10.
As shown in Figure 5, the surface 141,142 and 143 of main stiffening rib 14 is curved surface, and with the transition part 135 that drives end cap 10 being connected of inwall be arc transition, so can effectively reduce stress and concentrate.
Present embodiment is preferable, and the length of main stiffening rib 14 covers the inwall of whole transition part 135, and width and thickness are guaranteeing with under the condition that drives the interference of end cap 10 inner bodies not get desired value, avoids causing forming in the press casting procedure die casting defective because increase thickness.
Second embodiment
Consult Fig. 6, Fig. 6 is second embodiment's of model utility the sectional view of driving end cap 20.In the present embodiment, drive end cap 20 and comprise joint 232, joint 232 comprises orthogonal 2 first joints 233 with 2 second joints 234 and is connected first joint 233 and two transition parts 235 of second joint 234.In the present embodiment, transition part 235 is circular arc limits, and the main stiffening rib 24 that drives end cap 20 is arranged at the inwall of second joint 234, and main stiffening rib 24 is straight muscle, and its bearing of trend is parallel with second joint 234.Main stiffening rib 24 respectively arranges one in the inwall of second joint 234 of joint 232 both sides that drive end cap 20.
The length of main stiffening rib 24 covers the inwall of whole second joint 234, and slightly extends, with proof strength.The width of main stiffening rib 24 and thickness are guaranteeing with under the condition that drives the interference of end cap 20 inner bodies not get desired value, avoid causing forming in the press casting procedure die casting defective because increase thickness.
The 3rd embodiment
Consult Fig. 7, Fig. 7 is the sectional view of the utility model the 3rd embodiment's driving end cap 30.In the present embodiment, drive end cap 30 and comprise joint 332, joint 332 comprises orthogonal 2 first joints 333 with 2 second joints 334 and is connected first joint 333 and two transition parts 335 of second joint 334.In the present embodiment, transition part 335 is hypotenuse or circular arc limit, and Fig. 7 is example with the circular arc limit.The main stiffening rib 34 that drives end cap 30 is arranged at the inwall of transition part 335 and second joint 334, its wider width, cover the inwall of whole transition part 335 and second joint 334, and extend until near front nose 32 upper shift forks 5 position openings, to improve the intensity of whole joint 332 along the inwall of the front nose 32 that drives end cap 30.Main stiffening rib 34 respectively arranges one in the transition part 335 of joint 332 both sides that drive end cap 30 and the inwall of second joint 334.
As shown in Figure 7, main stiffening rib 34 is curved surface with the surface 341,342 and 343 that drives end cap 30, and with second joint 334 and front nose 32 being connected of inwall be arc transition, can effectively reduce stress and concentrate.Can effectively reduce stress concentrates.The thickness of main stiffening rib 34 is guaranteeing with under the condition that drives the interference of end cap 30 inner bodies not get desired value, avoids causing forming in the press casting procedure die casting defective because increase thickness.
As shown in Figure 9, Fig. 9 is in the enough parts of front nose Final 32 degree, main stiffening rib 34 can be removed a part, as the removal portion 17 among Fig. 9, to reduce material, saves cost.
The 4th embodiment
Consult Fig. 8, Fig. 8 is the sectional view of the utility model the 4th embodiment's driving end cap 40.In the present embodiment, drive end cap 40 and comprise joint 432, joint 432 comprises orthogonal 2 first joints 433 with 2 second joints 434 and is connected first joint 433 and two transition parts 435 of second joint 434.In the present embodiment, transition part 435 is hypotenuse or circular arc limit, and Fig. 7 is example with the hypotenuse.
The main stiffening rib 44 of present embodiment combines second embodiment and the 3rd embodiment, and main stiffening rib 24 and main stiffening rib 34 all are arranged on the inwall of the joint 432 that drives end cap 40, drives the intensity of end cap 40 with further reinforcement.
Further, among the above embodiment, for strengthening driving the intensity of end cap, all can suitably add auxilliary stiffening rib at the front nose inwall that drives end cap, the quantity of auxilliary stiffening rib is selected according to the requirement of strength that drives end cap, as shown in Figure 9, auxilliary stiffening rib 15 and 16 evenly is arranged at the inwall of the front nose that drives end cap, and extends to the bearing assembly department.
Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (13)
1. one kind drives end cap, has been installed on nose formula starter motor, comprising:
Front nose;
Be arranged at the bearing portion of described front nose front end, described bearing portion wears a live axle;
Be arranged on the gap portion of described front nose side, described gap portion comprises the engagement space of meshing for an actuation gear and an engine flywheel and the joint that is connected with described front nose, it is characterized in that the inwall of described joint is provided with main stiffening rib.
2. driving end cap according to claim 1 is characterized in that, described driving end cap adopts the aluminium alloy compression casting manufacturing.
3. driving end cap according to claim 1 is characterized in that, the junction surface of described main stiffening rib and described inwall is curved surface.
4. driving end cap according to claim 3, it is characterized in that, described joint comprises 2 first joints, 2 second joints and two transition parts, described first joint is vertical with described live axle, described second joint is parallel with described live axle, and described transition part connects described first joint and described second joint.
5. driving end cap according to claim 4 is characterized in that, described transition part is hypotenuse, and described main stiffening rib is arranged at the inwall of described transition part and parallel with described transition part.
6. driving end cap according to claim 4 is characterized in that, described transition part is the circular arc limit, and described main stiffening rib is arranged at the inwall of described second joint and parallel with described second joint.
7. driving end cap according to claim 4 is characterized in that, described transition part is hypotenuse or circular arc limit, and described main stiffening rib comprises the first main stiffening rib.
8. driving end cap according to claim 7, it is characterized in that, the described first main stiffening rib is arranged at the inwall of described transition part and described second joint, and extends to described front nose upper shift fork position opening at the inwall of described front nose along described live axle direction.
9. driving end cap according to claim 8 is characterized in that, the described first main stiffening rib has the district of removal.
10. according to Claim 8 or 9 described driving end caps, it is characterized in that described main stiffening rib also comprises the second main stiffening rib, the described second main stiffening rib is arranged at the inwall of described second joint and parallel with described second joint.
11. according to described each the described driving end cap of claim 1-9, it is characterized in that, many auxilliary stiffening ribs of the inner wall even distribution of described front nose, described many auxilliary stiffening ribs are extended to the joint of described front nose and described bearing portion by described shift fork position opening.
12. each described driving end cap according to claim 10, it is characterized in that, many auxilliary stiffening ribs of the inner wall even distribution of described front nose, described many auxilliary stiffening ribs are extended to the joint of described front nose and described bearing portion by described shift fork position opening.
13. one kind has nose formula starter motor, comprises the driving end cap, it is characterized in that, described driving end cap is each described driving end cap of claim 1-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220708772 CN203035425U (en) | 2012-12-20 | 2012-12-20 | Nose-type starter and driving end cover thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220708772 CN203035425U (en) | 2012-12-20 | 2012-12-20 | Nose-type starter and driving end cover thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203035425U true CN203035425U (en) | 2013-07-03 |
Family
ID=48687555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220708772 Expired - Lifetime CN203035425U (en) | 2012-12-20 | 2012-12-20 | Nose-type starter and driving end cover thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203035425U (en) |
-
2012
- 2012-12-20 CN CN 201220708772 patent/CN203035425U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130703 |